Describe the new feature

Paper is dead, long live PDF!

Printing support in:

• SQL/XML/JSON editor widgets
• Plot
• Table data in Data Browser and Execute SQL results
• DB Structure
• Other Edit Database Cell widgets

Information for SQL/XML/JSON:
http://pyqt.sourceforge.net/Docs/QScintilla2/classQsciPrinter.html

Plot:
https://www.qcustomplot.com/index.php/support/forum/976

Table browser:
https://stackoverflow.com/questions/3147030/qtableview-printing
Maybe we can reuse the HTML clipboard.